Remove leading # from comments

Signed-off-by: Juanjo Alvarez <juanjo@sourced.tech>

driver/normalizer/tonode.go

@@ -1,6 +1,10 @@
 package normalizer
 
-import "gopkg.in/bblfsh/sdk.v1/uast"
+import (
+	"strings"
+
+	"gopkg.in/bblfsh/sdk.v1/uast"
+)
 
 // ToNode is an instance of `uast.ObjectToNode`, defining how to transform an
 // into a UAST (`uast.Node`).
@@ -35,12 +39,18 @@ var ToNode = &uast.ObjectToNode{
 
 			// Native parser wrongly set positions at individual lines in multiline
 			// strings at 0, remove the position on those to avoid confusion
-			if t, ok := n["type"].(string); ok && t == "str" {
-				if endCol, ok := n["end_col"].(float64); ok && endCol == 0 {
-					delete(n, "start_col")
-					delete(n, "end_col")
-					delete(n, "start_line")
-					delete(n, "end_line")
+			if t, ok := n["type"].(string); ok {
+				if t == "str" {
+					if endCol, ok := n["end_col"].(float64); ok && endCol == 0 {
+						delete(n, "start_col")
+						delete(n, "end_col")
+						delete(n, "start_line")
+						delete(n, "end_line")
+					}
+				} else if t == "comment" {
+					if text, ok := n["text"].(string); ok && strings.HasPrefix(text, "#") {
+						n["text"] = text[1:]
+					}
 				}
 			}
 		}

fixtures/comments.rb.uast

@@ -38,7 +38,7 @@ UAST:
 .  .  .  .  .  .  documentation: false
 .  .  .  .  .  .  inline: true
 .  .  .  .  .  .  internalRole: comments
-.  .  .  .  .  .  text: # previous
+.  .  .  .  .  .  text:  previous
 .  .  .  .  .  }
 .  .  .  .  }
 .  .  .  .  1: comment {
@@ -57,7 +57,7 @@ UAST:
 .  .  .  .  .  .  documentation: false
 .  .  .  .  .  .  inline: true
 .  .  .  .  .  .  internalRole: comments
-.  .  .  .  .  .  text: # inline
+.  .  .  .  .  .  text:  inline
 .  .  .  .  .  }
 .  .  .  .  }
 .  .  .  .  2: comment {
@@ -76,7 +76,7 @@ UAST:
 .  .  .  .  .  .  documentation: false
 .  .  .  .  .  .  inline: true
 .  .  .  .  .  .  internalRole: comments
-.  .  .  .  .  .  text: # after
+.  .  .  .  .  .  text:  after
 .  .  .  .  .  }
 .  .  .  .  }
 .  .  .  .  3: int {